VXI120 Philips 64 Channel Differential TTL / TTL Variable Voltage Interface for VXI

The Phillips' VXI120 Variable Voltage Interface for VXI interface card is an intelligent digital interface capable of supporting development and validation testing. The VXI120 has 6 on-board field programmable gate arrays (FPGAs) to support bus emulation, protocol simulation, test algorithm generation and other data conversion functions.The user can configure (on-the-fly) the direction and type of I/O for each pin. The VXI120 provides a very flexible interface with Independent high and low thresholds that can be set using two 14-bit DACs for each channel. When in input mode, the FPGAs can detect when the signal is above, below, or in between the thresholds. When in output mode, high and low output levels be set as well. High and low ranges can each be set to any levels between -15V and +15V. Built-in diodes protect each channel from over-voltage conditions, and current limiting resistors protect against over-current conditions.The VXI120's six ACEX1K100s have capacity and memory to support complex operations decoupled from the VXI bus. This allows the VXI120 to operate at high speed without being interrupted by the host controller. The user can program the FPGAs through the VXI interface, or via on-board EPROM so the board is automatically loaded. Example FPGA code and driver source code are provided with the VXI120.The VXI120 has a VME32 compatibility mode that allows high speed operation with a VME style real-time host controller instead of a VXI host controller.